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  Indian J Med Microbiol
 

Figure 2: Preoperative CT myelogram and axial MRI for Case 1. The abrupt change in cord caliber/displacement demonstrated by the myelogram was not evident on MRI studies. Note inadvertent bubble of air that ascended superiorly to the level of arachnoid web, which was useful in confi rming the presence and level of the web

Figure 2: Preoperative CT myelogram and axial MRI for Case 1. The abrupt change in cord caliber/displacement demonstrated by the myelogram was not evident on MRI studies. Note inadvertent bubble of air that ascended superiorly to the level of arachnoid web, which was useful in confi rming the presence and level of the web